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With more than 100 years in existence, Lennox has always delivered industry-leading innovation and technology while preserving stringent durability and reliability standards. The professionals at James Heating & A/C, Inc help bring those standards to Lexington so that you can always have total home comfort. If you’re in the market for a new HVAC system or even if you just have a question about what we offer, give us a call at 336-853-6070. We’d love to hear from you.

If you have an older central air conditioner, you might choose to replace the outdoor compressor with a modern, high-efficiency unit. If you do so, consult a local heating and cooling contractor to assure that the new compressor is properly matched to the indoor unit. However, considering recent changes in refrigerants and air conditioning designs, it might be wiser to replace the entire system.

We are a local, family-owned business that has been serving the Lancaster County area since 1945. For many homeowners, we are their trusted partner for home improvements and repairs, providing certified electrical and plumbing services, home remodeling, and major home appliance sales and service. Our large team of experienced installers, plumbers, electricians, and HVAC repair technicians means you can rely on Brubaker, Inc. to respond quickly for all your home repair needs.
With the right equipment and regular maintenance, your heating and cooling systems can pay you back. Our NATE-certified technicians are trained to maintain and repair central air conditioners and heat pumps from Carrier and all other brands. If you are experiencing problems with your furnace or AC system, we’ll make sure that your system is working properly, and we won’t leave until the job is complete and your home is comfortable. In this busy world, we understand the importance of prompt appointment scheduling and reliable service. We even offer 24-hour emergency service and after-hours air conditioner repairs that fit your busy schedule.
In the UK, the Ozone Regulations[62] came into force in 2000 and banned the use of ozone depleting HCFC refrigerants such as R22 in new systems. The Regulation banned the use of R22 as a "top-up" fluid for maintenance between 2010 (for virgin fluid) and 2015 (for recycled fluid). This means that equipment that uses R22 can still operate, as long as it does not leak. Although R22 is now banned, units that use the refrigerant can still be serviced and maintained.
Even if your air conditioning unit is still working, depending on the type of system in your home today, you could recoup your investment in a new system in as little as three years. However, that doesn't mean that your system needs to be replaced. Furnaces, air conditioners, and other heating and cooling systems have made tremendous gains in efficiency over the past five years, so if you have an older unit, it is worth taking a look at whether or not a repair is the best investment.
An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases. Check out our Energy Saver 101 Infographic: Home Cooling for more ways to help improve your comfort and the efficiency of your air conditioner.
The condensed, pressurized, and still usually somewhat hot liquid refrigerant is next routed through an expansion valve (often nothing more than a pinhole in the system's copper tubing) where it undergoes an abrupt reduction in pressure. That pressure reduction results in flash evaporation of a part of the liquid refrigerant, greatly lowering its temperature. The cold refrigerant is then routed through the evaporator. A fan blows the interior warm air (which is to be cooled) across the evaporator, causing the liquid part of the cold refrigerant mixture to evaporate as well, further lowering the temperature. The warm air is therefore cooled and is pumped by an exhaust fan/ blower into the room. To complete the refrigeration cycle, the refrigerant vapor is routed back into the compressor. In order for the process to have any efficiency, the cooling/evaporative portion of the system must be separated by some kind of physical barrier from the heating/condensing portion, and each portion must have its own fan to circulate its own "kind" of air (either the hot air or the cool air).
Our company has been serving Woodbridge and the Northern Virginia region since 1979. We don’t compromise on quality — our team members pride themselves on providing the top-quality service each and every time. We attribute our success to the fact that we’re responsive to our customers’ needs, no matter if they’re residential or commercial, large or small. Whether you need routine maintenance or a complete system installation, our team of trained technicians is at your beck and call, and we’re prepared to deliver quality services and products at an affordable price. We live by the time-tested motto, “Do the job right the first time.”
As much as half of the energy used in your home goes to heating and cooling. So making smart decisions about your home's heating, ventilating, and air conditioning (HVAC) system can have a big effect on your utility bills — and your comfort. Take these steps to increase the efficiency of your heating and cooling system. For more information, see our Guide to Energy Efficient Heating & Cooling (708KB).
Believe it or not, the evaporator coils inside the AHU (Air Handling Unit) are freezing. You may notice the refrigerant lines on the condenser or at the AHU are frozen with ice build-up. The frost or ice builds up on the evaporator coils and blocks air flow (low air flow and no cooling are a sign of a low charge). A low refrigerant charge will cause the evaporator coil to operate at or below freezing. Since the coil typically operates below the dew point, it draws condensation out of the air. When the evaporator coil begins operating below freezing all this condensation freezes to the evaporator coil and the unit stops cooling.
Heat pumps and electric furnaces usually have steam humidifiers to increase output. They are line voltage powered and must be unplugged or disconnected before servicing to avoid injury. With the exception of some mist type humidifiers, all have a reservoir. Stagnant water sitting in the reservoir during the off season can be a breeding ground for bacteria. Turn the water off and clean the humidifier if possible when heating season has ended.
In order to get the most out of your equipment, we highly recommend proper preventative HVAC maintenance. You’ll want to make sure from the outset that you have access to skilled and knowledgeable technicians who have been factory-trained to service your particular model, since different systems require different highly specific modifications. It’s advisable to find a reputable HVAC dealer in the Atlanta area that guarantees their work and offers annual service contracts to their customers to ensure necessary seasonal maintenance is always being performed regularly. Many times, timely adjustments and filter changes that are done on a regular basis can wind up saving you from breakdowns that always seem to occur right when you need your system the most.
Free cooling systems can have very high efficiencies, and are sometimes combined with seasonal thermal energy storage so that the cold of winter can be used for summer air conditioning. Common storage mediums are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter, heat-exchanger-equipped boreholes. Some systems with small storages are hybrids, using free cooling early in the cooling season, and later employing a heat pump to chill the circulation coming from the storage. The heat pump is added-in because the storage acts as a heat sink when the system is in cooling (as opposed to charging) mode, causing the temperature to gradually increase during the cooling season.

In a thermodynamically closed system, any power dissipated into the system that is being maintained at a set temperature (which is a standard mode of operation for modern air conditioners) requires that the rate of energy removal by the air conditioner increase. This increase has the effect that, for each unit of energy input into the system (say to power a light bulb in the closed system), the air conditioner removes that energy.[30] To do so, the air conditioner must increase its power consumption by the inverse of its "efficiency" (coefficient of performance) times the amount of power dissipated into the system. As an example, assume that inside the closed system a 100 W heating element is activated, and the air conditioner has a coefficient of performance of 200%. The air conditioner's power consumption will increase by 50 W to compensate for this, thus making the 100 W heating element cost a total of 150 W of power.

Air-source heat pumps are more popular in milder winter climates where the temperature is frequently in the range of 4–13 °C (40–55 °F), because heat pumps become inefficient in more extreme cold. This is because ice forms on the outdoor unit's heat exchanger coil, which blocks air flow over the coil. To compensate for this, the heat pump system must temporarily switch back into the regular air conditioning mode to switch the outdoor evaporator coil back to being the condenser coil, so that it can heat up and defrost. A heat pump system will therefore have a form of electric resistance heating in the indoor air path that is activated only in this mode in order to compensate for the temporary indoor air cooling, which would otherwise be uncomfortable in the winter.
One problem occurred on Monday. When we called at 2:30 in the afternoon to check on status, we were told that "the tech is on the phone with the parts supplier now". It seems more likely that they had forgotten about us and our call woke them up. But even if true, why the heck did they wait until 2:30 to order the part? Maybe if they had ordered it in the morning they could have had it the same day. So I'm taking off one star for that.
Some types of filters are reusable; others must be replaced. They are available in a variety of types and efficiencies. Clean or replace your air conditioning system's filter or filters every month or two during the cooling season. Filters may need more frequent attention if the air conditioner is in constant use, is subjected to dusty conditions, or you have fur-bearing pets in the house.

From Day 1, Alberto walked us through the process, and present us with a variety of options based our budget for the project. His customer service is the best as he did not oversell any services and did not nudge us towards buying a unit that would stretch our budget. On installation day, HVAC Services sent out a crew of 6-7 guys, all of whom were very polite and kept their work areas clean, and installed the whole system the same day.

Your system is 10 - 15 years old: Follow this simple rule of thumb from Energy Star—if your current system is over 10 years old, it's time to start looking into an HVAC replacement. Most HVAC systems last for about 15 years, so there’s no immediate need to replace yours if it’s still functioning properly. But by doing your research now, you’ll know just what you want to do should your HVAC system suddenly stop working properly.
All graduates keep access to their accounts on the Ashworth EDGE, an online toolkit that provides step-by-step guidance through resume templates, cover letters, thank you letters, and more. As a student, you will interact with the Ashworth EDGE throughout your lessons to make you comfortable with the tools and prepare you to make a good impression on potential employers once you've graduated!
At BGE HOME, our customers trust our courteous and knowledgeable technicians to repair the most sophisticated heating and air conditioning system breakdowns. Every BGE HOME technician is licensed in their trade and adheres to a stringent in-house certification program that guarantees their knowledge, affirms their commitment to the customer, and ensures excellence in completing every heating and air conditioning repair with the highest level of quality.